In Europe, almost all campervans and motorhomes are equipped with double-pane RV windows – and for good reason. The GEARZAAR 800×450 mm Cassette Window offers exceptional insulation, convenience, and security – all in a sleek, modern design perfect for both retrofits and new builds. Premium Acrylic Double-Glazed Pane: Exceptional thermal and noise insulation. Integrated Roller Blind & Fly Screen: Adjust both simultaneously with one hand. Multi-Lock Safety Catches: Prevents the window from being opened from outside. Thermal Insulation Coating: Blind features white-cream interior and aluminium-coated exterior for heat reflection. Insect-Resistant Fly Net: Black square lattice for maximum visibility and protection. Fits Wall Thicknesses: 25-55mm (adjustable by trimming inner frame). Easy DIY Installation: Ideal for Beginners & Pros, Simply screw the window frame from the inside to clamp to the vehicle wall; Apply polyurethane or semi-permanent sealant around the outer frame for a watertight seal; Attach the inner cassette frame for a seamless finish and added blind protection during install. Fitment for: Camper Van Conversions, Horseboxes, Motorhomes & Caravans, RV, Boat. 1 Outer Window Frame. 20 Exterior Window Mounting Screws. 4 Inner Window Mounting Screws. Note: Take care to measure your existing window precisely before ordering. Look for etched size markings on your old window or measure the aperture (cut-out size) directly. Thank you for shopping with us! Please confirm your vehicle model, year, and part number before purchasing to ensure compatibility. We recommend professional installation for all auto parts to avoid damage or incorrect installation. Do not remove protective films, labels, or install the product until you have verified fitment. Thank you for your business! ? Welcome to our store! We specialize in auto parts and accessories, providing high-quality products for car enthusiasts and everyday drivers worldwide. Thank you for choosing us for your auto parts needs. We look forward to serving you again! Your feedback means a lot to us and helps us improve!! We are committed to providing you with a pleasant shopping experience and will do our best to assist you. Thank you for choosing our store! Car Care & Cleaning. Windscreen Wipers & Washers. Motorhome Parts & Accessories. Interior Parts & Furnishings. Diagnostic Equipment & Tools. Engines & Engine Parts. 5 stars DSR experience. Process within 24 hours. Send us a message. Do not miss any special offers! Sign up for newsletter.